its ok Gordon its the age thing.lolI got a little confused by the title John, Sorry about that,
I wouldn't touch that with a barge pole personally... the pic is showing the wrong fitting for UK* cylinders for starters and then there's the gauge which is red lined at 15 MPa suggesting max inlet pressure of 150 bar / 2175psi. Having just taken my daily cynical pill i'd wager the flowmeter is probably comically inaccurate too
A reminder of the energy stored in gas cylinders
* BS341 no3 for argon / argon CO2 mixes / O2 etc